August 19, 1871

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Features

File Cutting

Hydraulic Buffer for Checking the Recoil of Heavy Guns

What is Steel ?

The East London Museum of Science and Art

W. H. Windsor's Printer's Chase

Shaw's Compound Propeller Pump

Emile Prevost's New Battery

Boiler Explosions

How to Become Bankrupt by Manufacturing

Combustibility of Diamonds--Various Effects Produced by High Temperatures

The Disposal of Sewage

The Approaching Fair of the American Institute

A New Bleaching Process

Electrical Organ Blowers and Sewing Machine Motors

The Patent Agency Business

Interesting Extension Cases--New Rules and Regulations

A New Idea in Safes

Answers to Correspondents- August 19, 1871

Queries- August 19, 1871

Recent American and Foreign Patents- August 19, 1871

Official List of Patents- August 19, 1871

Issued by the U. S. Patent Office

Departments

Letters

Correspondence- August 19, 1871

Departments

Business and Personal- August 19, 1871

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Digital Issue ?Read or download this issue’s articles online. *A printed copy of this issue is not included. $7.99

Print + Digital All Access Subscription ?Read or download this issue’s articles online. Plus, subscribe to get Print, Online and Tablet access to the next 12 new issues to be released as well as Online access to archives back to 1845. $99.00

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